scholarly journals Economic Analysis of the Supply Response Function of the Soybean Crop in Egypt

Author(s):  
Aon Khairallah Aon Hamad ◽  
sameh Shehab ◽  
ossama afefy
2009 ◽  
Vol 41 (1) ◽  
pp. 145-162 ◽  
Author(s):  
Anthony N. Rezitis ◽  
Konstantinos S. Stavropoulos

This paper examines the supply response of the Greek pork market. A GARCH process is used to estimate expected price and price volatility, while price and supply equations are estimated jointly. In addition to the standard GARCH model, several different symmetric, asymmetric, and nonlinear GARCH models are estimated. The empirical results indicate that among the estimated GARCH models, the quadratic NAGARCH model seems to better describe producers' price volatility, which was found to be an important risk factor of the supply response function of the Greek pork market. Furthermore, the empirical findings show that feed price is an important cost factor of the supply response function and that high uncertainty restricts the expansion of the Greek pork sector. Finally, the model provides forecasts for quantity supplied, producers' price, and price volatility.


2013 ◽  
Vol 13 (2) ◽  
pp. 85-92
Author(s):  
Fawikorn Inluang ◽  
Boonsirm Booncharoenphon ◽  
Prasert Chaitip

2000 ◽  
Vol 5 (2) ◽  
pp. 1-17
Author(s):  
Muhammad Ali Chaudhary

This study represents an attempt at estimating the farmer supply response to different economic and material incentives. Several researchers have estimated the cultivator supply response to different techno-economic factors (Cummings, 1975a and 1975b; Askari and Cummings, 1977; Cooley, 1973; Chen, Courteny and Schmitz, 1972; Ghoshal, 1975; Tweeten, 1986). However, as agriculture modernises, the relative significance of different factors affecting farm inputs and outputs changes; factors regarded as significant determinants of farmer decision at one time may not be relevant at another time. Similarly, the transformation of agriculture in the desirable direction invariably necessitates and at times renders desirable the use of new measures and policy instruments. How farmers react to changes in market forces and government measures is important to know in different ways. In fact, policy makers are interested in knowing the appropriateness, effectiveness and impact of measures for the ultimate formation or legislation of farm regulations.


2002 ◽  
Vol 7 (1) ◽  
pp. 29
Author(s):  
M.S. EI-Habbab ◽  
K.H. Alwan

To increase wheat production, governments can subsidize wheat farmers by purchasing their produce at a price higher than the world price. This policy did not succeed in increasing wheat production in the Irbid Governorate of Jordan, our case study area. The agricultural sector in the study area was characterized by risk in production and prices. In our study, the supply response function based on the Nerlovian Model was estimated for wheat produced in Irbid Governorate. Wheat area, in the model, was the dependent variable in the supply response function. The independent variables were: wheat planted area in Dunums in the current and previous year respectively, the weighted price of wheat in the previous year deflated by the Consumer Price Index (CPI), the holding fragmentation coefficient in the previous year, the yield risk, and the amount of rain in millimeters during the early months of the season (October, November, and December). The study reached the following conclusions: Firstly, holdings fragmentation was the major factor that negatively affects wheat production. Since the heritage system is the main factor that affects holding fragmentation, the policy makers need to find a way that can decrease this effect. Secondly, lagged weighted prices were found more suitable than the current weighted prices from an economic and statical point of view. Thirdly, the partial adjustment coefficient was low (i.e. less than one), which means that the farmers need more than one year to change their producing habits. Finally, the farmers were found to be risk-neutral, because their decisions depend mainly on the level and distribution of rainfall during the rainy season.  


Sign in / Sign up

Export Citation Format

Share Document